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document-haness/docs/clean-architecture-backend-template/tech-log-studio/delivery-and-settlement-models/concept/concept-grpc-admin-c01.md
T
DongHyeonkaandClaude Opus 5 b2963105a8 docs(keycloak-session-store): import the session-storage lab as a new project
The keycloak project ended with four open questions that design could not
settle. A two-VM lab was built to answer them by measurement, and this is
that material: 26 experiments, 125 raw command outputs, 22 browser captures.

Follows the import procedure in README.md.

  source/     the originating repository verbatim — 78 documents, 28 SVGs,
              8 manifests, plus .source-revision recording the commit
  final/      the SSOT
    document.md   729 lines written from the 29 experiment documents, not
                  concatenated: what was predicted, what was measured, and
                  where the measurement itself was wrong
    evidence/raw    125 outputs, flattened to <experiment>__<file> because
                    the originals collided (01-baseline.txt appeared three
                    times) and the audit only globs the top level
    evidence/meta   one per raw file; command and exitCode are null and the
                    README says why rather than inventing them
    evidence/browser  22 captures
    assets/       three diagrams through techviz
    .techviz/     their VizSpecs

A separate project rather than an addition to keycloak: the B-layer answers
that project's four questions, but the A, C and D layers are about cluster
failure, SSO and operations, and one document.md should hold one subject.
The four question records there can point here through 관계.

Recorded rather than papered over: only three of the 28 diagrams were
remade. The repository forbids hand-drawn SVG and forbids titles inside the
canvas; all 28 originals carry both, so converting them is redrawing, not
reformatting. They stay in source/ and the gap is written into the document.

verify-pipeline.py passes. audit-records.py reports no issues.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 22:51:59 +09:00

2.2 KiB

kind, slug, title, topic, project, status, sourceRevision, rootTreeNode, evidenceCapturedOn, assets, evidence, source, module
kind slug title topic project status sourceRevision rootTreeNode evidenceCapturedOn assets evidence source module
CONCEPT grpc-admin-c01 건강 레지스트리 — 낙관에서 시작하지 않는다 delivery-and-settlement-models clean-architecture-backend-template 게시 전 21234e38cdb9a926cbc92bb97a2aee2e4a7d2916 concept:grpc-admin-c01 2026-09-01
key file
grpc-admin-c01 ../../../final/evidence/rendered/grpc-admin-c01.svg
key file
grpc-admin-c01-diagram ../../../final/assets/diagrams/grpc-admin-c01.svg
../../../final/evidence/raw/grpc-admin-c01.txt
원본 분석 절은 analysis/grpc/grpc-admin.md#L50 이다.
grpc-admin

건강 레지스트리 — 낙관에서 시작하지 않는다

모든 등록 서비스가 UNKNOWN 에서 시작한다. 그리고 배수 중에는 markServing·markNotServing 이 무시된다.

본문

모든 등록 서비스가 UNKNOWN 에서 시작한다.

"A registry that starts optimistic reports ready during startup, receives traffic before the first dependency check has run, and fails the requests that arrive in that window — the window being exactly the moment a rollout is shifting traffic onto the instance."

배수 중에는 표시가 무시된다

markServing·markNotServing 이 무시된다.

"a service that reports itself healthy after the drain has started would be routed traffic the instance has already promised not to take."

전역 상태 판정 우선순위

:::evidence key="grpc-admin-c01-diagram" alt="임계 의존 불건강과 하나라도 NOT_SERVING 과 하나라도 SERVING 과 그 밖이 위에서 아래로 쌓여 있고 오른쪽에 판정 순서 화살표가 있다" caption="전역 상태 판정 우선순위" zoom="false" :::

임계 의존이 하나라도 불건강하면 NOT_SERVING, 아니면 하나라도 NOT_SERVING 이면 NOT_SERVING, 하나라도 SERVING 이면 SERVING, 그 밖에는 UNKNOWN 이다.

이 기록이 다루는 범위

:::evidence key="grpc-admin-c01" alt="코드베이스에서 파일 목록을 만든 출력 13줄. 이 기록이 다루는 범위가 그 목록이다." caption="코드베이스 파일 목록 — 13줄 · exit 0" zoom="true" :::